Seuils d'oscillation d'un instrument de musique à anche simple : protocole expérimental & instrumentation d'une bouche artificielle

Abstract

National audienceSingle reed instruments like clarinet and saxophone may be considered as the coupling of an acoustic resonator (the bore of the instrument) and the reed which acts as a valve modulating the air flow blown by the musician. The blowing pressure required for sound emergence is mainly determined by the acoustic characteristics of the bore. However previous studies explain that it may be largely influenced by the way the player controls the dynamical behaviour of the reed, in particular how the player's lips damp the mechanical resonance of the reed. We will present preliminary xperimental work in order to compare the measurements with the pressure threshold theory